function Validate(forma)
{
  if (forma.elements['subject'].value == "" ) {
         alert("Please fill field \"Subject\"");
         forma.elements['subject'].focus();
         return false;
   }
   if (forma.elements['name'].value == "" ) {
         alert("Please fill field \"Name\"");
         forma.elements['name'].focus();
         return false;
   }
      mail= forma.elements['mail'].value;
   if (mail == '' || ((mail).search(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/) == -1) || mail.length < 7) {
        alert('Please enter valid E-mail address'); forma.elements['mail'].focus(); return false;
   }
  if (forma.elements['messagi'].value == "" ) {
         alert("Please fill field \" Message\"");
         forma.elements['messagi'].focus();
         return false;
   }

   return true;
}